This informative book introduces young readers to wheels and axles, describing how they work, how they help people do jobs, and how they are used for fun. The book also includes a "That’s Amazing!" special feature, several "Did You Know?" facts, a table of contents, quiz questions, a glossary, additional resources, and an index. This Focus Readers title is at the Pioneer level, aligned to reading levels of grades 1-2 and interest levels of grades 1-3.